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helpers.js
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helpers.js
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window.helpers = (function () {
function newTimer(attrs = {}) {
const timer = {
title: attrs.title || 'Timer',
project: attrs.project || 'Project',
id: uuid.v4(), // eslint-disable-line no-undef
elapsed: 0,
};
return timer;
}
function findById(array, id, cb) {
array.forEach((el) => {
if (el.id === id) {
cb(el);
return;
}
});
}
function renderElapsedString(elapsed, runningSince) {
let totalElapsed = elapsed;
if (runningSince) {
totalElapsed += Date.now() - runningSince;
}
return millisecondsToHuman(totalElapsed);
}
function millisecondsToHuman(ms) {
const seconds = Math.floor((ms / 1000) % 60);
const minutes = Math.floor((ms / 1000 / 60) % 60);
const hours = Math.floor(ms / 1000 / 60 / 60);
const humanized = [
pad(hours.toString(), 2),
pad(minutes.toString(), 2),
pad(seconds.toString(), 2),
].join(':');
return humanized;
}
function pad(numberString, size) {
let padded = numberString;
while (padded.length < size) padded = `0${padded}`;
return padded;
}
return {
millisecondsToHuman,
newTimer,
findById,
renderElapsedString,
};
}());